METHOD AND INSTALLATION FOR INDIRECT REDUCTION OF PARTICULATE OXIDE-CONTAINING ORES

摘要

PURPOSE: Provided is an installation for hardening tubular concrete workpieces of the type described at the outset such that the construction for opening and closing the cover plates can be significantly simplified. CONSTITUTION: An installation is described for hardening tubular concrete workpieces(1) in chambers(2) which are open at the top, can be closed with cover plates(3) and can be subjected to vapor and which can be charged with the aid of an overhead travelling crane(6) bearing a hoist(9) for workpieces(1). In order to achieve an advantageous construction constellation it is recommended that the overhead travelling crane(6) for the workpieces(1) has a gripping device for the cover plates(3) of the chambers(2).